<!--电子围栏页-->
<!--
  @click="router.push('/geofenceMap')" 此处router.push()方法能够实现页面的跳转
  括号内为路由包下的path路径属性值 实现跳转至其绑定的view文件渲染的界面
-->
<template>
  <div style="height: 6vh;background-color:#fff;padding:10px 20px;">
    <span style="line-height:60px;font-size:20px;">围栏管理</span>
    <el-button type="primary" style="float:right;margin-top:13px;" @click="router.push('/geofenceMap')">新建围栏
    </el-button>
  </div>
  <!-- 围栏查询卡片 -->
  <el-card style="margin:20px;height: 70px;">
    <el-form :inline="true">
      <el-form-item label="围栏名称">
        <el-input placeholder="请输入" style="width:220px;" v-model="geoSearchForm.name"
                  @keydown.enter="loadGeo"></el-input>
      </el-form-item>
      <el-form-item label="围栏状态" style="width:290px;">
        <el-select placeholder="请选择" v-model="geoSearchForm.status" @change="loadGeo">
          <el-option label="启用" value="1"/>
          <el-option label="禁用" value="0"/>
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button @click="resetSearch">重置</el-button>
        <el-button type="primary" @click="loadGeo">查询</el-button>
      </el-form-item>
    </el-form>
  </el-card>
  <!-- 围栏表格数据 -->
  <el-card style="margin:20px;">
    <el-table stripe :data="geoTableData">
      <el-table-column label="编号" prop="id" type="index" align="center" width="100"></el-table-column>
      <el-table-column label="围栏名称" prop="name" align="center"></el-table-column>
      <el-table-column label="围栏坐标点" prop="position" align="center" show-overflow-tooltip="true"
                       width="500"></el-table-column>
      <el-table-column label="创建时间" prop="createTime" align="center"></el-table-column>
      <el-table-column label="围栏状态" align="center">
        <template #default="scope">
          <el-switch inactive-value="0" active-value="1" v-model="scope.row.status"
                     @change="changeStatus(scope.row.id,scope.row.status)"></el-switch>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center">
        <template #default="scope">
          <el-button type="primary" link @click="loadVehicle(scope.row.id)">管理车辆</el-button>
          <el-button type="primary" link @click="deleteGeofence(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
  </el-card>
  <!-- 已绑定车辆弹窗 -->
  <el-dialog title="已绑定车辆" v-model="bindVehicleDialogVisible" style="padding:40px;">
    <el-button type="primary" style="margin:10px 0;" @click="showUnbindVehicleList">添加绑定车辆</el-button>
    <el-table :data="bindVehicleArr">
      <el-table-column prop="brand" label="车辆品牌" align="center"></el-table-column>
      <el-table-column prop="license" label="车牌号" align="center"></el-table-column>
      <el-table-column prop="type" label="车辆类型" align="center"></el-table-column>
      <el-table-column
          label="操作"
          fixed="right"
          width="200"
          align="center">
        <template #default="scope">
          <el-button link type="primary" @click="removeBindVehicle(scope.row.id)">移除</el-button>
        </template>
      </el-table-column>
    </el-table>
  </el-dialog>
  <!-- 添加可绑定车辆列表弹窗 -->
  <!-- :before-close="makeSure"要在关闭新添加绑定车辆的弹窗后立即加载已绑定车辆的弹窗表格数据-->
  <el-dialog title="可绑定车辆列表" v-model="AddBindVehicleDialogVisible" :before-close="handleClose">
    <el-table :data="unBindVehicleArr">
      <el-table-column label="编号" type="index" align="center" width="80px"></el-table-column>
      <el-table-column prop="brand" label="车辆品牌" align="center"></el-table-column>
      <el-table-column prop="license" label="车牌号" align="center"></el-table-column>
      <el-table-column prop="type" label="车辆类型" align="center"></el-table-column>
      <el-table-column prop="status" label="车辆状态" align="center"></el-table-column>
      <el-table-column label="操作" align="center">
        <template #default="scope">
          <el-button link type="primary" @click="bindNewVehicle(scope.row.id)">绑定</el-button>
        </template>
      </el-table-column>
    </el-table>
  </el-dialog>
</template>
<script setup>
import {onMounted, ref} from "vue";
import qs from "qs";
import axios from "axios";
import {ElMessage} from "element-plus";
import router from "@/router";

// 控制"已绑定车辆弹窗"是否显示
const bindVehicleDialogVisible = ref(false);
// 控制"可绑定车辆列表"是否显示
const AddBindVehicleDialogVisible = ref(false);
// 加载围栏数据
const loadGeo = () => {
  let data = qs.stringify(geoSearchForm.value);
  axios.get(BASE_URL + '/v1/geofence/select?' + data).then((response) => {
    if (response.data.code === 2000) {
      geoTableData.value = response.data.data;
    } else {
      ElMessage.error(response.data.msg);
    }
  })
};
// 页面加载时 自动加载电子围栏列表信息
onMounted(() => {
  loadGeo();
});
// 定义变量存储围栏列表数据
const geoTableData = ref([]);
// 定义变量保存搜索数据
const geoSearchForm = ref({name: '', status: ''});
// 重置搜索条件
const resetSearch = () => {
  // 清空搜索框中的内容 并重新加载围栏列表数据
  geoSearchForm.value = {};
  loadGeo();
};
// 定义变量 保存当前电子围栏id值 -> 此全局id用于后续围栏解绑车辆时使用
var geoId;
// 定义数组用以保存当前围栏已绑定车辆的信息
const bindVehicleArr = ref([]);
// 定义函数 用以加载当前围栏已绑定车辆的数据
const loadVehicle = (geofenceId) => {
  bindVehicleDialogVisible.value = true;
  // 将传入的当前围栏的id值赋值给全局变量
  geoId = geofenceId;
  axios.get(BASE_URL + '/v1/vehicle/select?geofenceId=' + geofenceId).then((response) => {
    if (response.data.code === 2000) {
      bindVehicleArr.value = response.data.data;
    } else {
      ElMessage.error(response.data.msg);
    }
  })
};
// 定义函数 用以将已绑定围栏的车辆移除 即将其状态变为空闲 并对数据库中对应的围栏外键置空
// 此处`id`为`车辆id`
const removeBindVehicle = (id) => {
  axios.post(BASE_URL + '/v1/vehicle/unbind/' + id).then((response) => {
    if (response.data.code === 2000) {
      ElMessage.success('车辆解绑成功!');
      // 车辆解绑后 重新加载当前围栏的所有已绑定车辆信息
      loadVehicle(geoId);
    } else {
      ElMessage.error(response.data.msg);
    }
  })
};
// 定义数组 保存可绑定围栏的可选车辆信息
const unBindVehicleArr = ref([])
// 定义函数 加载所有可绑定车辆的数据
const showUnbindVehicleList = () => {
  AddBindVehicleDialogVisible.value = true;
  axios.get(BASE_URL + '/v1/vehicle/select?geofenceBindStatus=0').then((response) => {
    if (response.data.code === 2000) {
      unBindVehicleArr.value = response.data.data;
    } else {
      ElMessage.error(response.data.msg);
    }
  })
};
// 定义函数 用于实现车辆对电子围栏的绑定
// 此处`id`为`车辆id`
const bindNewVehicle = (id) => {
  axios.post(BASE_URL + '/v1/vehicle/bind/' + id + '/' + geoId).then((response) => {
    if (response.data.code === 2000) {
      ElMessage.success('绑定成功!');
      // 每进行一次绑定操作 便重新加载一次车辆数据
      showUnbindVehicleList();
    } else {
      ElMessage.error(response.data.msg);
    }
  })
};
// 关闭内层弹窗时外层弹窗刷新数据的优化处理
const handleClose = () => {
  // 加载当前围栏的所有已绑定车辆数据
  loadVehicle(geoId);
  // 关闭当前内层弹窗
  AddBindVehicleDialogVisible.value = false;
}
// 定义方法 实现围栏状态的更新 (围栏id 围栏状态)
const changeStatus = (id, status) => {
  /*
    第一步 创立一个obj对象 包含与形参同名的两个属性 并用形参值进行赋值
    let obj = {id: id, status: status};
    第二步 将此对象转为字符串
    let data = qs.stringify(obj);
    第三步 将上述步骤合并
    let data = qs.stringify({id: id, status: status});
   */
  let data = qs.stringify({id: id, status: status});
  axios.post(BASE_URL + '/v1/geofence/save', data).then((response) => {
    if (response.data.code === 2000) {
      ElMessage.success('修改成功!');
    } else {
      ElMessage.error(response.data.msg);
    }
  })
}
// 定义方法 用于删除围栏
const deleteGeofence = (id) => {
  if (confirm('是否删除围栏?')) {
    axios.delete(BASE_URL + '/v1/geofence/delete/' + id).then((response) => {
      if (response.data.code === 2000) {
        ElMessage.success('删除成功!');
        // 成功删除后需要重新加载围栏数据
        loadGeo();
      } else {
        ElMessage.error('包含绑定车辆,无法删除!');
      }
    })
  }
}
</script>

<style scoped>

</style>